| Autor: |
Carlse, Gehrig, Borsos, Kevin B., Beica, Hermina C., Vacheresse, Thomas, Pouliot, Alex, Perez-Garcia, Jorge, Vorozcovs, Andrejs, Barron, Boris, Jackson, Shira, Marmet, Louis, Kumarakrishnan, A. |
| Rok vydání: |
2020 |
| Předmět: |
|
| Zdroj: |
Phys. Rev. Applied 14, 024017 (2020) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1103/PhysRevApplied.14.024017 |
| Popis: |
We describe a new method for the rapid determination of the mass of particles confined in a free-space optical dipole-force trap. The technique relies on direct imaging of drop-and-restore experiments without the need for a vacuum environment. In these experiments, the trapping light is rapidly shuttered with an acousto-optic modulator causing the particle to be released from and subsequently recaptured by the trapping force. The trajectories of both the falls and restorations, imaged using a high-speed CMOS sensor, are combined to determine the particle mass. We corroborate these measurements using an analysis of position autocorrelation functions of the trapped particles. We report a statistical uncertainty of less than 2% for masses on the order of $5\times10^{-14}$ kg using a data acquisition time of approximately 90 seconds. |
| Databáze: |
arXiv |
| Externí odkaz: |
|
